In this image, a long line of trucks waits to cross from Austria into Hungary.

And in this image, long lines of vehicles wait to enter Mexico from the San Ysidro border crossing in southern California.

These photos show several cruise ships that are anchored about five kilometres off Miami Beach, Fla. According to local media, at least a dozen crew members from the Costa Favolosa and Costa Magica have been taken to hospital after falling ill.

This photo shows nearby South Beach. Officials closed the popular beach in mid-March over fears of the virus spreading.